I'm building a compliance-heavy product and need 365-day log retention

If you need 365-day log retention for a compliance-heavy product, the key is usually to design for durable, immutable, searchable, and auditable storage rather than just “keeping logs around.”

A solid pattern is:

1. Centralize logs

   • Send application, infrastructure, auth, and audit logs to a single logging pipeline.
   • Make sure logs include timestamps, actor/user ID, request ID, tenant ID, source, and event type.

2. Store in append-only / immutable storage

   • Use object storage or a log archive with write-once / retention lock controls if possible.
   • Prevent deletion or modification before the retention period expires.

3. Set retention at the storage layer

   • Configure a 365-day retention policy on the log bucket/index.
   • Include lifecycle management so data ages out automatically after 365 days.

4. Separate hot vs archive storage

   • Keep recent logs in a searchable “hot” system for fast investigations.
   • Move older logs to cheaper archival storage but keep them retrievable and tamper-evident.

5. Encrypt and control access

   • Encrypt logs at rest and in transit.
   • Restrict access with least privilege, MFA, and strong audit trails.
   • Log access to logs as well.

6. Make compliance evidence easy

   • Document retention settings, deletion controls, backup behavior, and access policies.
   • Be clear whether retention applies to all logs or only certain regulated categories.

7. Test restores and retrieval

   • Verify you can retrieve logs from 6–12 months ago.
   • Periodically test that logs are actually retained and readable.

8. Watch for hidden copies

   • Backups, replicas, SIEM exports, and search indexes may also retain logs.
   • Your policy should cover all copies, not just the primary store.

If you want, I can help with one of these next:

• a reference architecture for 365-day retention,
• a cloud-specific setup for AWS/GCP/Azure,
• or a retention policy template you can hand to compliance/legal.